Strikes me that if you look at your own life on a microscopic level, it doesn’t mean anything. We’re just clusters of molecules, atoms, electromagnetic charges, quarks, gluons. What does this movement of charge in Newtonian space actually mean?
If you look on a macroscopic level, it makes even less sense: the stars we see in the sky are so vast, and so far away - but they’re only the nearest stars to us in a small galaxy alone. There are hundreds of billions of stars in our galaxy, and our galaxy is one of billions. Look at the Hubble deep field and our galaxy itself becomes insignificant.
On our own planet, our existence is but a blip at the end of the evolutionary clock; geologically it doesn’t even qualify as a blip.
But even on the human level, what do you mean? Right now, you’re one of nearly 7 billion concurrent lives, most of them insignificant. In the grand scheme of things, unless you’re an Einstein, a Hitler or a Jesus, you don’t really matter. And historically, in a few thousand years even those three names will be completely forgotten, save as a footnote if humanity survives.
The only sphere in which your life possibly matters at all is the here and now, your friends and family, this brief few moments in the mindbogglingly vast sweep of space and time in the Universe. And in the scheme of things, they don’t matter either.
Life’s but a walking shadow, a poor player that struts and frets his hour upon the stage, and then is heard no more. It is a tale told by an idiot, full of sound and fury, signifying nothing.
Have a nice day!